You can solider on the chip to force it to go into a debug mode, but from what I've read it isn't required, several pinouts are available reasonably certain that, short of disassembly and a soldering iron, these are really "Read-Only" Drives. Maybe if I get bored I'll play around some more. The Flash ID varies but the first 4 bytes indicate it might be difficult to reflash with either 98DE9493, or 93DE88A3. Of the 6 drives I have they have they all seem to be Toshiba's, all with ICVersion 2251-03. I can still communicate with it using the manufacturers software, but Windows doesn't see it. But it failed to write the new firmware, after erasing the drive. I was successful in wiping one drive using this software trying to load a new burner and firmware on it. The manufacturers of the memory chips used in these drives have utilities on changing the firmware. After diving into the world of Russian forums relating to USB drive firmware I'm pretty certain that these just have firmware loaded on them that makes them read only, or appear as optical media. Reasonably certain that, short of disassembly and a soldering iron, these are really "Read-Only" Drives.
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